Incandescent gas-burner.



No. 628,155. Patented July 4, I899. E. BAUWERAERTS. INCANDESCENT GASBURNER.

(Application filed Nov 26, 1898.)

(Na Modal.)

UNITED STATES PATENT QEEIcE.

EMILE BAUWERAERTS, OF BRUSSELS, BELGIUM.

INCANDESCENT GAS-BURNER.

SPECIFICATION forming part of Letters Eatent No. 628,155, dated July 4,1899.

' Application filed November 26 1898. Serial No. 697,493. (No model.)

To on whom it ntay concern:

Be it known that I, EMILE BAUWERAERTS, gas-engineer, a citizen ofBelgium, residing at Rue des Fabriques, Brussels, in the K-ing-' that inaddition to the mixing-passage proper other passages communicatingtherewith at the top and having their discharge-openings situated inproximity thereto at the bottom will be provided for, so that a furtherand better mixing of the air and gas can be accomplished and the maximumstate of incandescence thus effected.

The invention consists in the improved in candescent gas-lamp and in thecombination and arrangement of the various parts thereof, substantiallyas will be hereinafter pointed out and finally embodied in the clausesof the claim.

The invention is fully illustrated in the accompanying drawings,wherein- Figure 1 is a vertical sectional view of my improvedincandescent gas-lamp, and Fig. 2 is a horizontal sectional view of myinvention on the line a b in Fig. 1. v

L in said drawings designates a gas-tip that is surrounded by a suitablesleeve L near its upper end and forming therewith an annular cavity I.

K designates a series of short tubes whose lower ends are secured to andcommunicate with the sleeve L, extending radially and being curvedupwardly therefrom.

B indicates the main tube or chimney of the lamp, and it is sustainednear its lower end by the tubes K, being surmounted by a perforated capB. The tubes K communicate with said chimney B.

C is an annular casing surrounding the chimney B and sustained by asuitable bracket 0 carried by the tip L. Said casing is provided withinwardly-extending projections E, formed by stamping the metal of whichit is composed inwardly, the projections being adapted to space thechimney from said cas ing and maintain these two elements in concentricarrangement.

M designates the mantle. It is supported by the usual upwardly-extendingoverhanging arm 'l, from which it is suspended and which is adjustablymounted in alug N, that it penetrates and that is provided with asetscrew N,adapted to engage the arm. The lug N projects from a sleeve0, to the upper end of which is secured the lower end of the mantle, andwhich snugly fits over the upper end of the tubular casing 0, beingthereby freely adjustable thereon.

D is the main mixing-tube. Said mixingtube is inclosed by the chimney,but is of somewhat smaller diameter than the same,

there being thereby formed an annular passage D. Since the mixing-tube Dis somewhat shorter than the chimney B, the passage D is open at thetop. It should be remarked, however, that with the exception of thetubes K, with which it has communication, said passage D is closed atthe bottom in any suitable manner.

By providing communication between the upper portion of the chimney Band the annularcavity I, surrounding the mouth of the tip, means isafforded whereby circulation may be effected and a better mixture beproduced than would otherwise be the case.

It should be remarked that the perforations in the cap B should not beso large, but that the cap will act to appreciably retard the flow ofthe illuminating mixture. If this is so and the force of gas issufficient,the partially-mixed airand gas initially collected in the topof the chimney beneath said cap will gradually be crowded, by newvolumes of the mixture that are rising, downwardly through the passage Dand the tubes K into the cavityQI, whence it will be immediately drawnup by the action of the gas escaping from the tip L, and

thereby further agitated and mixed. This action of course depends mainlyupon the force of the gas-supply. This should be adjusted bymanipulating theusualvalve whereby the gas-supply is regulated.

Having thus fully described my invention, what I claim as new, anddesire to secure b Letters Patent, is-

1. In an incandescent gas-lamp, the combination, with asuitablegas-discharge, of a ICO vertical tubular structure disposed above thesame and open at both ends, a perforated element situated above saidtubular structure and a passage or passages communicating with the spacebetween said perforated element and the tubular structure and having adischarge outlet or outlets in proximity to the discharge, substantiallyas described.

2. In an incandescent gas-lamp, the combination of a gas-tip, averticalmixing-tube open at both ends and disposed above said tip, achimneysurrounding and spaced from said tube and projecting above thetop of the same, a perforated cap surmounting said chimney, and tubescommunicating with said chimney near its lower end and discharging inproximity to the tip, substantially as described.

3. In an incandescent gas-lamp, the com bination of a gas-tip having anannular cavity surrounding it, a vertical mixing-tube 1 open at bothends and disposed above said tip, a chimney surrounding and spaced fromsaid tube and projecting above the same, a

perforated cap surmounting said chimney, 25

and tubes affording communication between the lower end of said chimneyand said cavity, substantially as described.

4. In an incandescent gas-lamp, the combination of a gas-tip having anannular cavity surrounding it, a vertical mixing-tube disposed above thesame, a chimney surrounding and spaced from said tube and projectingabove the same, tubes affording communication between said chimney andsaid cavity, a casing surrounding said chimney, a sleeve inclosing saidcasing, an overhanging arm adjustably secured to said sleeve, and amantle suspended from said arm and connected to said sleeve at its lowerend, substantially as described.

In testimony that I claim the foregoing I have hereto set my hand this10th day of November, 1898.

EMILE BAUWERAERTS. lVitnesses:

J. P. H. POHLER, GREGORY PHELAN.

